
Why does a day on Earth last 24 hours while a day on other planets can be much shorter—or far longer? The answer lies in planetary rotation, the spinning motion of a planet around its axis.
Understanding planetary rotation and day length helps explain not only timekeeping, but also weather patterns, climate behavior, and even the possibility of life on other worlds.
Continue reading “Planetary Rotation and Day Length: Why Days Differ Across the Solar System”








